advair may increase your risk of osteoporosis and some eye problems. tell your doctor if you have a heart condition or high blood pressure before taking advair. if you're still having difficulty breathing, ask your doctor if including advair could help improve your lung function. get your first full prescription free and save on refills at advaircopd.com. >> axelrod: for more than a year now, we've been reporting on the nationwide shortage of medicine used to treat some types of cancer. today, a study in the "new england journal of medicine" shows evidence of a link between this drug shortage and reduced effectiveness in treating some of the youngest cancer victims. here is jon lapook. >> reporter: abby alonzo was ten when diagnosed in 2009 with hodgkin's lymphoma, a cancer of the immune system. with proper treatment, 90% of patients survive. >> it wasn't as hard for me as i think it was on my mom, my brother, my dad. >> reporter: abby began a seven- drug regimen, but, in 2010, doctors told abby's mother, katie, there was a nationwide shortage of one o